我需要使用方法(DEST id =“RUSSIA”method =“delete”/>)和他的直接祖先(SOURCE id =“AFRICA”提取(XSLT,xpath,xquery …最好是xpath)最深层嵌套的元素节点“method =”modify“>).
我不想用方法获得顶级节点(main method =“modify”>或main method =“modify”>).
使用方法的最深嵌套元素对应于实际操作.
带方法的顶级元素实际上是虚拟动作,不能被考虑在内.
<?xml version="1.0" encoding="UTF-8"?> <main method="modify"> <MACHINE method="modify"> <SOURCE id="AFRICA" method="modify"> <DEST id="RUSSIA" method="delete"/> <DEST id="USA" method="modify"/> </SOURCE> <SOURCE id="USA" method="modify"> <DEST id="AUSTRALIA" method="modify"/> <DEST id="CANADA" method="create"/> </SOURCE> </MACHINE> </main>
这是我期望的Xpath输出:
<SOURCE id="AFRICA" method="modify"><DEST id="RUSSIA" method="delete"/> <SOURCE id="AFRICA" method="modify"><DEST id="USA" method="modify"/> <SOURCE id="USA" method="modify"><DEST id="AUSTRALIA" method="modify"/> <SOURCE id="USA" method="modify"><DEST id="CANADA" method="create"/>
我当前的xpath命令无法提供足够的结果.
返回的命令xpath(“// [@ method] / ancestor :: *”):
<main><MACHINE method="modify"> # NOT WANTED <MACHINE method="modify"><SOURCE id="AFRICA" method="modify"> # NOT WANTED <MACHINE method="modify"><SOURCE id="USA" method="modify"> # NOT WANTED <SOURCE id="AFRICA" method="modify"><DEST id="RUSSIA" method="delete"/> <SOURCE id="AFRICA" method="modify"><DEST id="USA" method="modify"/> <SOURCE id="USA" method="modify"><DEST id="AUSTRALIA" method="modify"/> <SOURCE id="USA" method="modify"><DEST id="CANADA" method="create"/>
我的xmltwig代码了解更多信息(上下文):
#!/usr/bin/perl -w use warnings; use XML::Twig; use XML::XPath; @my $t= XML::Twig->new; my $v= XML::Twig::Elt->new; $t-> parsefile ('input.xml'); @abc=$t->get_xpath("\/\/[\@method]\/ancestor\:\:\*") ; foreach $v (@abc) # outer 1 { foreach $v ($v ->children) # internal 1 { $w=$v->parent; print $w->start_tag; print $v->start_tag; } }